here's my code :
UserList = [['person1', '25yo','70kg','170cm'],[ 'person2','21yo','54kg','164cm']]
ListStrUser = []
for ListStrUser in UserList:
ListStrUser = GetNum(UserList)
def GetNum(anyList):
for i in range(1,len(anyList)):
anyList[i] = re.sub (r'\D',"", str(anyList[i]))
return anyList
print(ListStrUser)
########
expected result :
[['person1', '25','70','170'],[ 'person2','21','54','164']]
You were not far off Asif. But I cannot add much more to Ethan's answer which is why I'm confused that it was down voted. If you want a function that can handle all the work without the need for another for loop then this function below will do just that:
import re
UserList = [['person1', '25yo','70kg','170cm'],[ 'person2','21yo','54kg','164cm']]
def get_num(any_list):
# includes the for loop to iterate through the list of lists
list_str_user = []
for inner_list in any_list:
temp_list = [inner_list[0]]
for i in range(1,len(inner_list)):
temp_list.append(re.sub(r'\D', '', str(inner_list[i])))
list_str_user.append(temp_list)
return list_str_user
print(get_num(UserList))
Output:
[['person1', '25', '70', '170'], ['person2', '21', '54', '164']]
So no need for the for loop outside the function.
import re
def GetNum(anyList):
for i in range(1, len(anyList)):
anyList[i] = re.sub(r'\D[^0-9]',"",str(anyList[i]))
return anyList
userList = [['person1','25yo','70kg','170cm'],['person2','21yo','54kg','164cm']]
for ListStrUser in userList: ListStrUser = GetNum(ListStrUser)
print("Output : ", userList)
output: [['person1', '25', '70', '170'], ['person2', '21', '54', '164']]
from #Guy 's comment:
UserList = [['person1', '25yo','70kg','170cm'],[ 'person2','21yo','54kg','164cm']]
import re
def GetNum(anyList):
for i in range(1,len(anyList)):
anyList[i] = re.sub (r'\D',"", str(anyList[i]))
return anyList
ListStrUser = []
for ListStr in UserList:
ListStrUser.append(GetNum(ListStr))
print(ListStrUser)
gives
[['person1', '25', '70', '170'], ['person2', '21', '54', '164']]
Try the following code:
user_list = [['person1', '25yo','70kg','170cm'],[ 'person2','21yo','54kg','164cm']]
list_str_user = []
def get_num(any_list):
updated_list = [any_list[0]]
for i in range(1,len(any_list)):
updated_list.append(re.sub(r'\D',"", str(any_list[i])))
return updated_list
for user in user_list:
list_str_user.append(get_num(user))
print(list_str_user)
Notice I also updated the naming of your variables and functions and the spacing between functions to be compliant with pep8. Keep this in mind when writing Python code.
Also functions should be defined before you use them otherwise Python won't find them.
I also created the updated_list variable in get_num, it's never a bad idea to not mutate parameters in functions.
line = ['R2', 'R5', 'R6', 'R7', 'R10', 'R12', 'R13', 'R15', 'R18', 'R20', 'R21', 'R22', 'R23', 'R24', 'R26', 'R30', 'R31', 'R32', 'R33', 'R34', 'R35', 'R36', 'R37', 'R38', 'R44', 'R45', 'R46', 'R47', 'R48', 'R53', 'R55', 'R56', 'R63', 'R66', 'R68', 'R69', 'R70', 'R74', 'R78', 'R80', 'R81', 'R82', 'R83', 'R84', 'R90', 'R91', 'R92', 'R97', 'R98', 'R99', 'R100', 'R101', 'R102', 'R103', 'R108', 'R109', 'R111', 'R115', 'R116', 'R117', 'R118', 'R120', 'R121', 'R123', 'R124', 'R126', 'R130', 'R131', 'R132', 'R136', 'R138', 'R141', 'R142', 'R151', 'R152', 'R153', 'R154', 'R155', 'R156', 'R158', 'R160', 'R161', 'R163', 'R164', 'R167', 'R169', 'R171', 'R172', 'R177', 'R178', 'R179', 'R180', 'R181', 'R182', 'R183', 'R184', 'R186', 'R190', 'R192', 'R195', 'R196', 'R199', 'R201', 'R203', 'R204', 'R205', 'R206', 'R207', 'R209', 'R210', 'R211', 'R213', 'R214', 'R215', 'R216', 'R217', 'R223', 'R225', 'R227', 'R228', 'R229', 'R231', 'R233', 'R237', 'R238', 'R239', 'R240', 'R245', 'R246', 'R247', 'R248', 'R249', 'R250', 'R252', 'R253', 'R254', 'R255', 'R257', 'R258', 'R265', 'R266', 'R267', 'R268', 'R270', 'R271', 'R273', 'R275', 'R276', 'R277', 'R279', 'R280', 'R281', 'R284', 'R287', 'R290', 'R291', 'R292', 'R293', 'R294', 'R296', 'R299', 'R300', 'R301', 'R303', 'R304', 'R305', 'R306', 'R307', 'R308', 'R309', 'R310', 'R312', 'R313', 'R314', 'R315', 'R317', 'R320', 'R321', 'R323', 'R325', 'R327', 'R329', 'R330', 'R331', 'R334', 'R335', 'R336', 'R339', 'R340', 'R341', 'R343', 'R344', 'R345', 'R347', 'R349', 'R350', 'R352', 'R354', 'R356', 'R358', 'R359', 'R360', 'R361', 'R362', 'R363', 'R365', 'R367', 'R372', 'R373', 'R376', 'R378', 'R379', 'R381', 'R384', 'R386', 'R388', 'R393', 'R397', 'R398', 'R399', 'R401', 'R402', 'R403', 'R405', 'R406', 'R407', 'R410', 'R411', 'R413', 'R414', 'R416', 'R419', 'R420', 'R421', 'R422', 'R427', 'R430', 'R433', 'R434', 'R435', 'R438', 'R439', 'R443', 'R444', 'R445', 'R453', 'R454', 'R455', 'R456', 'R458', 'R459', 'R460', 'R461', 'R462', 'R463', 'R464', 'R466', 'R467', 'R468', 'R469', 'R470', 'R473', 'R475', 'R476', 'R478', 'R481', 'R482', 'R483', 'R485', 'R487', 'R488', 'R489', 'R490', 'R492', 'R494', 'R496', 'R497', 'R499', 'R500', 'R502', 'R503', 'R506', 'R508', 'R509', 'R511', 'R512', 'R516', 'R517', 'R519', 'R520', 'R528', 'R530', 'R532', 'R537', 'R539', 'R540', 'R541', 'R542', 'R544', 'R545', 'R547', 'R549', 'R550', 'R552', 'R555', 'R558', 'R560', 'R561', 'R562', 'R563', 'R564', 'R565', 'R566', 'R568', 'R571', 'R572', 'R573', 'R574', 'R576', 'R579', 'R581', 'R583', 'R584', 'R585', 'R586', 'R588', 'R590', 'R592', 'R593', 'R595', 'R597', 'R598', 'R600', 'R601', 'R606', 'R607', 'R609', 'R610', 'R612', 'R613', 'R614', 'R615', 'R617', 'R618', 'R619', 'R620', 'R622', 'R624', 'R625', 'R626', 'R627', 'R628', 'R629', 'R630', 'R631', 'R632', 'R633', 'R634', 'R635', 'R636', 'R638', 'R642', 'R644', 'R645', 'R646', 'R647', 'R648', 'R649', 'R650', 'R652', 'R654', 'R657', 'R658', 'R660', 'R662', 'R668', 'R669', 'R671', 'R672', 'R673', 'R674', 'R676', 'R677', 'R678', 'R683', 'R684', 'R686', 'R689', 'R691', 'R693', 'R694', 'R696', 'R697', 'R698', 'R700', 'R701', 'R704', 'R706', 'R707', 'R710', 'R712', 'R713', 'R715', 'R716', 'R718', 'R719', 'R721', 'R724', 'R725', 'R728', 'R729', 'R730', 'R731', 'R733', 'R734', 'R737', 'R738', 'R739', 'R740', 'R743', 'R744', 'R745', 'R747', 'R748', 'R751', 'R755', 'R756', 'R757', 'R758', 'R759', 'R761', 'R762', 'R763', 'R767', 'R768', 'R770', 'R773', 'R774', 'R775', 'R776', 'R777', 'R779', 'R783', 'R785', 'R786', 'R789', 'R791', 'R795', 'R796', 'R797', 'R798', 'R800', 'R801', 'R802', 'R804', 'R805', 'R806', 'R808', 'R818', 'R819', 'R820', 'R822', 'R824', 'R826', 'R827', 'R829', 'R830', 'R831', 'R833', 'R835', 'R836', 'R838', 'R840', 'R841', 'R843', 'R844', 'R845', 'R847', 'R848', 'R849', 'R850', 'R851', 'R852', 'R853', 'R855', 'R858', 'R859', 'R860', 'R862', 'R863', 'R865', 'R867', 'R868', 'R869', 'R870', 'R874', 'R875', 'R876', 'R880', 'R881', 'R882', 'R884', 'R885', 'R886', 'R889', 'R891', 'R892', 'R893', 'R894', 'R895', 'R897', 'R900', 'R906', 'R908', 'R909', 'R911', 'R912', 'R914', 'R917', 'R918', 'R921', 'R922', 'R924', 'R925', 'R926', 'R927', 'R928', 'R929', 'R930', 'R932', 'R935', 'R937', 'R943', 'R944', 'R945', 'R946', 'R947', 'R948', 'R949', 'R951', 'R952', 'R953', 'R956', 'R957', 'R958', 'R959', 'R961', 'R964', 'R965', 'R966', 'R967', 'R968', 'R969', 'R971', 'R972', 'R974', 'R975', 'R976', 'R979', 'R981', 'R982', 'R983', 'R986', 'R987', 'R988', 'R990', 'R993', 'R994', 'R997']
ref = str(line).replace("R","")
print(ref)
it prints ('2', '5', '6', '7', '10', '12', '13', '15', '18', '20', '21', '22', '23', '24', '26', '30', '31', '32', '33', ...... and so on
Would like to turn to integers(2,5,6,7,10,12,13,15,18... and so on. I have tried but no good results.
Use list comprehension
line = [int(l.replace("R", "")) for l in line]
If "R" is always the first character, you can also do:
line = [int(l[1:]) for l in line]
Per the data provided, both solution above will work solve the original question, if you may have invalid data, for example R32R the above will fail and raise a ValueError exception.
To prevent this you can discard any value that are not an integer by using:
item.isnumeric()
line = [int(l[1:]) for l in line if l[1:].isnumeric()]
You can also achieve the same with a regex expression
re.search('\d+', line[0]).group(0)
line = [int(re.search('\d+', l).group(0)) for l in line if re.search('\d+', l) is not None]
You will need the following import:
import re
today I tried to create a class.
I wrote this.
from first_names_class import firstnames
from last_names_class1 import lastnames
from object_name_list import my_new_list
class MyClass:
"""A Class with automatated full names."""
# Automatically create the instances of the class named user_indexfrom the rangeiterator
def __init__(self, first_name, last_name):
self.first_name = first_name
self.last_name = last_name
for i in range(0, 49):
my_new_list[i] = MyClass(firstnames[i], lastnames[i])
print(user1.first_name)
However, when I run it it says:
Traceback (most recent call last):
['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50']
File "/Users/myname/Documents/University/Programming for Quantitive Analysis/MyFirstClass.py", line 15, in
print(user1.first_name)
NameError: name 'user1' is not defined
['user1', 'user2', 'user3', 'user4', 'user5', 'user6', 'user7', 'user8', 'user9', 'user10', 'user11', 'user12', 'user13', 'user14', 'user15', 'user16', 'user17', 'user18', 'user19', 'user20', 'user21', 'user22', 'user23', 'user24', 'user25', 'user26', 'user27', 'user28', 'user29', 'user30', 'user31', 'user32', 'user33', 'user34', 'user35', 'user36', 'user37', 'user38', 'user39', 'user40', 'user41', 'user42', 'user43', 'user44', 'user45', 'user46', 'user47', 'user48', 'user49', 'user50']
My thoughts on this:
I don't know if I'm correct but I have read in another thread that the object/instance of the class should not be indented as it will be read "as content of the class".
On the other hand, the for-loop requires me to have this text indented.
How can I solve this problem, if that what I said is exactly the problem.
If what I said, is wrong, how can I then solve this NameError.
Maybe it has something to do with the list from which I take the object-name. As they are strings, maybe that is the trouble-maker.
I'd be thankful for any hint on how I can solve this.
Access elements of your list using index notation:
print(my_new_list[0].first_name)
And there is nothing wrong with your indentation.
You never defined the symbol user1... You only have my_new_list which is of type list, which you can access the elements of using [id].
I used some pseudo lists to demonstrate but with this setup you would access the values like so
first = ['vash', 'billy']
last = ['stampede', 'stack']
class MyClass:
def __init__(self, f_name, l_name):
self.first_name = f_name
self.last_name = l_name
self.full_name = f_name + ' ' + l_name
user = [MyClass(first[idx], last[idx]) for idx, item in enumerate(first)]
print(user[0].first_name)
print(user[1].first_name)
[print(user[idx].full_name) for idx, item in enumerate(user)]
~/python/stackoverflow/9.23$ python3.7 dicta.py
vash
billy
vash stampede
billy stack